Checked out modules appear as locked after IDE restart

Just found that same problem has been reported about a year ago for 1.7.13
( same used by me)
http://www.pushok.com/tickets/object-blocked-by-same-user-3128.html

Attempted o upgrade to 1.8 ... got unrecognized URL scheme, which was also
reported before ...

http://www.pushok.com/tickets/unrecognized-url-scheme-when-trying-to-connect-to-repository-3120.html


Then downgraded to 1.6 .. and it seems like working ...
I'm completely lost ... why newer versions have problems which are not
fixed?

I'm currently evaluating this product and planning a purchase ... but above
problems make me little unsure if I want to proceed ...

I'm trying to migrate our Visual Objects solution from VSS to SVN SCC.
I successfully built SVN repository and then loaded it into Visual Objects
IDE.
Initially, it all looked like working - I can check out, edit and check in
changes.
But it appeared it works only if I do all changes and commit in a single
IDE session.

If I check out a module (file), do some changes, then exit IDE (without
checking in), then start the Visual Objects IDE again and try to edit the
same file I IDE asks me to checkout the file again and then tells me "file
is locked by another user".
Both, IDE Source Control Properties and Tortoise SVN repository browser
show that file is locked by me and I should not have problems editing this
file.
Since this point, I cannot touch this file via IDE.
The only resolution is to use "break lock" from Tortoise SVN repository
browser.

Any idea what could be causing this?